Applicator brush



FIG. 1 is a perspective view showing the front, top and one side of my design wherein the brush is shown detached from the applicator handle;

FIG. 2 is a perspective view showing the front, bottom and other side of my design wherein the brush and handle are attached for use;

FIG. 3 is a plan view showing the top of my design;

FIG. 4 is a plan view showing the bottom of my design;

FIG. 5 is a plan view showing the left side of my design, which is a mirror image of the right side thereof;

FIG. 6 is a plan view showing the rear side of my design; and,

FIG. 7 is a plan view showing the front side of my design. 

CLAIM The ornamental design for an applicator brush, substantially as shown and described. 